High quality zirconium grain: longer lifetime on ferrous metals and stainless steel. Self trimming backing pad: allows grinding on the last grain!. Natural fibre backing pad: low vibration & noise, no harmful dust. Highly flexible: perfectly adjusts to working piece. Low heat development: no metal discolouration, especially on stainless steel. Made in Germany. Ideal grinding speed: ø. 115 mm: 7.000 - 8.000 rpm. ø. 125 mm: 6.000 - 7.000 rpm. Applications: Ferrous metals, stainless steel V2A (1.4301) / V4A (1.4401). Orders are only possible in master cartons (with 10 x 4932430412). Minimum order quantity is 10 x 4932430412 (= 1 master carton). Order quantities greater than 10 pcs are to be ordered in multiples of 10 pcs (ie. 20, 30, 40, 50..).